Ebyte E49-400T20S Bedienungsanleitung

E49-400T20S User Manuel

433MHz SMD Wireless Module

CONTENTS

1. OVERVIEW..................................................................................................................................... 4

1.1 INTRODUCTION..............................................................................................................................................................4

1.2 FEATURES......................................................................................................................................................................4

2. SPECIFICATION AND PARAMETER........................................................................................5

2.1 LIMIT PARAMETER.........................................................................................................................................................5

2.2 OPERATING PARAMETER............................................................................................................................................... 5

3. SIZE AND PIN DEFINITION........................................................................................................6

4. RECOMMENDED WIRING DIAGRAM.................................................................................... 7

5. FUNCTION DESCRIPTION..........................................................................................................8

5.1 MODULE RESET.............................................................................................................................................................8

5.2 AUX DETAILED EXPLANATION......................................................................................................................................8

5.2.1 Wireless receiving indication.................................................................................................................................

5.2.2 Wireless transmission indication...........................................................................................................................

5.2.3 Reset and exit sleep mode......................................................................................................................................

5.2.4 AUX Precautions...................................................................................................................................................

5.2.5 Detailed explanation of fixed-point mode.............................................................................................................

5.2.6 Broadcast transmission.......................................................................................................................................

5.2.7 Broadcast address...............................................................................................................................................

5.2.8 Monitor Address..................................................................................................................................................

Chengdu

6. OPERATING MODE................................................................................................................... 12

6.1 MODE SWITCHING.......................................................................................................................................................12

6.2 TRANSMISSION MODE（MODE0）............................................................................................................................. 13

6.3 RSSI MODE（MODE1）............................................................................................................................................ 13

6.4 SETTING MODE（MODE2）.......................................................................................................................................14

6.5 SLEEP MODE（MODE3）...........................................................................................................................................14

6.6 FAST COMMUNICATION TEST......................................................................................................................................14

7. COMMAND FORMAT................................................................................................................ 16

7.1 DEFAULT PARAMETERS.............................................................................................................................................. 16

7.2 READING OPERATING PARAMETER............................................................................................................................. 16

7.3 READING VERSION NUMBER READING........................................................................................................................16

7.4 PARAMETER SETTING INSTRUCTION........................................................................................................................... 17

8. HARDWARE DESIGN.................................................................................................................19

9.1 COMMUNICATION RANGE IS TOO SHORT.....................................................................................................................20

9.2 MODULE IS EASY TO DAMAGE.................................................................................................................................... 20

9.3 BER(BIT ERROR RATE)IS HIGH................................................................................................................................. 20

10. WELDING OPERATION GUIDANCE................................................................................... 21

10.1 REFLOW SOLDERING TEMPERATURE........................................................................................................................ 21

10.2 REFLOW SOLDERING CURVE.....................................................................................................................................22

11. RELATED MODEL....................................................................................................................22

Chengdu

12. ANTENNA GUIDE..................................................................................................................... 23

12.1 ANTENNA RECOMMENDATION...................................................................................................................................23

13. BATCH PACKAGING............................................................................................................... 24

REVISION HISTORY...................................................................................................................... 24

ABOUT US.........................................................................................................................................25

成都亿佰特电子科技有限公司 E49-400T20S 产品规格书

1. Overview

1.1 Introduction

E49-400T20S is an ultra-high cost-effective wireless module launched by

Chengdu Ebyte. It has 4 operating modes. Each transmission mode has its

own characteristics and can be applied to various application scenarios.

E49-400T20S can perfectly support industrial-grade applications, and

undergoes rigorous testing at the factory to ensure its industrial reliability and

batch consistency.

The E49-400T20S supports a maximum transmission power of 20dBm.

Users can set a lower output power to save power consumption. The module works at 433MHz, with TTL level output,

and is compatible with 3.3V. The module has data encryption function. The data transmitted by the module in the air is

random. Through strict encryption and decryption algorithms, the data interception is meaningless, the probability of

interference is reduced, and the reliability and transmission efficiency are improved. Besides, it is a low-cost wireless

serial transceiver module.

1.2 Features

The measured communication distance can reach 1km;

Maximum transmit power is 100mW, software can be adjusted in multiple stages;

The global license-free ISM 433MHz frequency band;

Data transmission rate :1.2Kbps～200Kbps;

Low power consumption mode, suitable for battery application;

Advanced ultra-narrowed GFSK modulation;

2.6V~5.5V power supply;

Industrial-grade standard design, support long-term use of -40 ~ 85°C;

Support stamp hole and IPEX interface, users can choose to use according to their needs.

1.3 Application Scenario

Wearable devices;

Security system, Positioning system;

Wireless remote control, unmanned drone;

Health care product；

Wireless voice, wireless headphones;

Automobile industry application.

Chengdu

2. Specification and parameter

2.1 Limit parameter

Main parameter

Performance

Remark

Min.

Max.

Power supply（V）

5.5

Voltage over 5.5V will cause permanent

damage to module

Blocking power（dBm）

Chances of burn is slim when modules

are used in short distance

Operating temperature（℃）

-40

2.2 Operating parameter

Main parameter

Performance

Remark

Min.

Typ.

Max.

Operating voltage（V）

2.6

5.5

Communication level（V）

3.3

For 5V TTL, it may be at risk of burning

down

Operating temperature（℃）

-40

Industrial design

Operating frequency（MHz）

410

433

510

Support ISM band

Power

consumption

TX current（mA）

Instant power consumption

RX current（mA）

Sleep current（μA）

0.7

Software is shut down

Max Tx power（dBm）

20.0

Receiving sensitivity（dBm）

-116

-118

-119

Air data rate is1.2kbps

Air data rate（bps）

1.2k

2.4k

200k

Controlled via user’s programming

Main parameter

Description

Remark

Distance for reference

1000m

Test condition：clear and open area, antenna gain:

5dBi,antenna height:2.5m，air data rate:1.2kbps

FIFO

54 Byte

Maximum capacity of single transmission

Cache capacity

500 Byte

Modulation

GFSK

Communication interface

UART serial port

Package

SMD

Connector

1.27mm

Size

26*16mm

Antenna

IPEX/Stamp hole

50 ohm impedance

Chengdu

3. Size and pin definition

No.

Name

Direction

Function

GND

Module ground wire

GND

Module ground wire

GND

Module ground wire

GND

Module ground wire

Input（pull up when

it’s weak）

Cooperate with M1 to determine 4 operating modes of the module(can be lifted

floating, the module contains pull-up resistor）

Input（pull up when

it’s weak）

Cooperate with M0 to determine 4 operating modes of the module(can be lifted

floating, the module contains pull-up resistor）

RXD

Input

TTL serial input, connect to external TXD output pin;

TXD

Output

TTL serial input, connect to external RXD output pin;

AUX

Output

Used to indicate the working status of the module; the user wakes up the external

MCU and outputs a low level during the power-on self-test initialization

VCC

Module power supply positive reference, voltage range: 2.6V ~ 5.5V DC

GND

Module ground wire

GND

Module ground wire

Chengdu

GND

Module ground wire

GND

Module ground wire

ANT

antenna

GND

Module ground wire

4. Recommended wiring diagram

No.

Brief introduction of connection between the module and the single-chip microcomputer (the above picture uses

STM8L single-chip microcomputer as an example)

The wireless serial port module is TTL level, please connect with MCU with TTL level.

Some 5V microcontrollers may require 4 ~ 10K pull-up resistors on the TXD and AUX pins of the module.

Chengdu

5. Function description

5.1 Module reset

After the module is powered on, AUX will immediately output a low level and perform a hardware self-test and set

the operating mode according to user parameters. In this process, AUX is kept at a low level, outputs a high level after

completion, and starts to work normally according to the working mode composed of M1 and M0. Therefore, users need

to wait for the rising edge of AUX as the starting point for the normal operation of the module.

5.2 AUX detailed explanation

AUX is used for wireless sending and receiving buffer indication and self-inspection indication.

It indicates whether the data of the module that has not been transmitted through the wireless, or whether it has

received wireless data that has not been transmitted through the serial port, or the module is in the process of initial

self-test.

5.2.1 Wireless receiving indication

After receiving the valid wireless data, the module will immediately pull AUX low and start the serial port to output

data and then pull up AUX after the data output is completed.

5.2.2 Wireless transmission indication

After receiving the serial port data, the module will immediately pull down AUX and start sending data wirelessly

and after all the data is sent, pull up AUX.

Chengdu

5.2.3 Reset and exit sleep mode

Only when resetting and exiting sleep mode

5.2.4 AUX Precautions

The function 1 and function 2 mentioned above have low output priority, that is, if any output low condition is met,

AUX outputs a low level; when all low level conditions are not met, AUX outputs a high level.

When the AUX output is low, it indicates that the module is busy, and the operating mode detection will not be

performed; when the AUX output is high, the mode switching will be completed.

When the user enters other modes from mode 3 (sleep mode) or during the reset process, the module will reset the user

parameters, during which AUX outputs low level.

5.2.5 Detailed explanation of fixed-point mode

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